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Honeywell CT31 Support Question

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Question posted by grandmaof3x1 on August 7th, 2012

Wiring Instructions

I just bought a Honeywell CT 31 thermostat it has 4wires,old thermostat had 2 wires,can I use new 4 wire and if so I need instructions on how to wire it

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Related Honeywell CT31 Manual Pages

Owner's Manual - Page 1

All rights reserved. Patents pending. Copyright © 2005 Honeywell International Inc. Registered Trademark. Owner's Manual CT31 Low-voltage Thermostat Getting started Check to make sure your package includes the following items: CT31 thermostat Cover plate Wire labels Caution card Wall anchors and mounting screws (2 each) Before you begin, make sure you have: • Screwdriver...

Owner's Manual - Page 2

... for advice. Stop installation and call 1-800-468-1502 for instructions regarding recycling and proper disposal. You may not be compatible with wires attached. Leave wallplate in a sealed tube. Did you have 5 or more wires, your new thermostat may have 5 or more wires? Owner's Manual Remove your old thermostat 1 Turn off power at heating/cooling system (or fuse...

Owner's Manual - Page 3

... both screw holes. 3 Be careful not to let loose wires fall into the wall opening ! IGNORE WIRE COLORS: Use only letter designations to identify wire types. CT31 Low-voltage Thermostat Label wires and remove old wallplate Use a screwdriver to disconnect wires one by one.As you disconnect each wire Do not let wires fall into wall opening . Wrap supplied labels securely around...

Owner's Manual - Page 4

See note If this wire is present, you cannot use this thermostat with wall. 3 [Optional] Pull wires through cover plate (if needed to cover marks left by your system. Labels don't match? Owner's Manual Mount thermostat base 1 Drill holes at pencil-marked locations (3/16" holes for drywall, 7/32" holes for plaster). 2 Use hammer to tap anchors into the...

Owner's Manual - Page 5

... until the cover snaps into place. 3 Restore electrical power at the heating/cooling system, or at the fuse/ circuit-breaker panel. CT31 Low-voltage Thermostat Set adjustment lever 1 Separate cover from thermostat, and remove the plastic insert. 2 Use a pencil to move the adjustment lever to the proper setting for your system (see table below).

Owner's Manual - Page 6

... only the cooling system. • Heat: Thermostat controls only the heating system. • Off: Heating and cooling systems are off. To prevent possible compressor damage, do not operate cooling system when outdoor ...

Owner's Manual - Page 7

CT31 Low-voltage Thermostat Limited Warranty Honeywell warrants this product to be free from defects in the possession of purchase by the consumer... bill of sale or other rights which vary from which occurred while the product was in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of a consumer. If the product is defective, (i) ...

Owner's Manual - Page 8

... For assistance with this product please visit www.honeywell.com/yourhome or call Honeywell Customer Care toll-free at least 10% post-consumer paper fibers. ® U.S. on recycled paper containing at 1-800-468-1502 Automation and Control Solutions Honeywell International Inc. Patents pending. Need Help? Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic...